Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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A Positioning Method of Distributed Power System by Considering Characteristics of Droop Control in a DC Microgrid

  • Ko, Byoung-Sun (Dept. of Electrical Engineering, Hanyang University) ;
  • Lee, Gi-Young (Dept. of Electrical Engineering, Hanyang University) ;
  • Kim, Sang-Il (Dept. of Electrical Engineering, Hanyang University) ;
  • Kim, Rae-Young (Dept. of Electrical and Biomedical Engineering, Hanyang University) ;
  • Cho, Jin-Tae (Korea Electric Power Research Institute(KEPRI), Korea Electric Power Corporation(KEPKO)) ;
  • Kim, Ju-Yong (Korea Electric Power Research Institute(KEPRI), Korea Electric Power Corporation(KEPKO))
  • Received : 2017.06.27
  • Accepted : 2017.11.13
  • Published : 2018.03.01
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Abstract

In this paper, a positioning method of distributed power system is proposed to minimize the average voltage variation of a DC microgrid through voltage sensitivity analysis. The voltage sensitivity under a droop control depends on the position of the distributed power system. In order to acquire a precise voltage sensitivity under a droop control, we analyzed the power flow by introducing a droop bus with the considerations of the droop characteristics. The results of the positioning method are verified through PSCAD/EMTDC simulation.

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References

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